differential current source

[mixer100]

How to creat a differential current source? If using balun, how to build the topology?
By the way, I am building a fully differential TIA test bench? Thank you in advance if anyone with experience can provide any suggestion.

 

[FvM]

You may want to tell a few key parameters to make understandable what you are trying to achieve (Frequency range, current range,
intended minimum output impedance). Generally, you'll find many possible topologies in existing electronic designs.

 

[biff44]

Yeah, I agree, post your requirements. I would not consider a Balun as a current source...as soon as the H field collapses, you would have nothing for current output.